Tag: Variable Speed Drives
Ensuring Safety for the Hawke’s Bay –Pump Station Variable Speed Drives Come to the Rescue
In February 2023, the Hawke’s Bay region of New Zealand faced the destructive force of Cyclone Gabrielle. Read More »
Navigating EMC requirements for RFI and variable speed drives
Why it's important to make the right choice when selecting a variable speed drive Variable speed drives (VSDs) have become an essential component in modern industrial applications, as they offer... Read More »
The principles of managing DV/DT in AC variable frequency drives
A typical output stage of an AC variable frequency drive consists of six transistor switches (usually IGBTs) which are turned on and off at a rate varying between 1 – 20kHz. Read More »
Control and Efficiency - Key drivers for the ANZCO
Situated alongside the lower reaches of the Waitara River in Taranaki the ANZCO Foods Processing site has a rich history dating back to the earliest New Zealand meat export trade. Read More »
Harmonics - What should my Variable Speed Drive have?
The installation of increased numbers of non-linear load devices, such as variable speed drives, onto electrical networks that are at, or above capacity has seen a rapid increase in interest... Read More »
Variable Speed Drives - Getting It Right (Part 2)
Part 1 on VSD selection and getting it right has already delved into the importance of understanding the load type (variable torque or constant torque) and temperature ratings when choosing... Read More »
Variable Speed Drive Selection - Getting It Right (Part 1)
It is that age old dilemma – You have got pricing for two variable speed drives from different manufacturers but how do you know you’re comparing “Apples for Apples” and... Read More »
Filtering out the noise - Understanding IEC 61800-3 (Part 3)
Now in this final installment we will look at how the manufactures rate their levels of EMC compliance. Read More »
Filtering out the noise - Understanding IEC 61800-3 (Part 2)
Part 3 of IEC 61800 specifies electromagnetic compatibility (EMC) requirements for power drive systems (PDSs). These are adjustable speed a.c. or d.c. motor drives. Read More »
Filtering out the noise - Understanding IEC 61800-3
Go to the internet and you can search for any number of white papers on the theories of RFI and variable speed drives, but try and get an accurate comment... Read More »
Outdoor Medium Voltage Variable Speed Drive
Power Electronics has supplied an 11,000 Volt, 1.0 Megawatt XMV660 Variable Speed Drive to a New Zealand customer in late 2019. Read More »